Use OkHttpClientProvider to allow extending preconfigurated clients.

android/src/main/java/com/dylanvann/fastimage/OkHttpProgressGlideModule.java

@@ -34,8 +34,9 @@ public class OkHttpProgressGlideModule implements GlideModule {
 
     @Override
     public void registerComponents(Context context, Glide glide) {
-        OkHttpClient client = new OkHttpClient
-                .Builder()
+        OkHttpClient client = OkHttpClientProvider
+                .getOkHttpClient()
+                .newBuilder()
                 .addInterceptor(createInterceptor(new DispatchingProgressListener()))
                 .build();
         glide.register(GlideUrl.class, InputStream.class, new OkHttpUrlLoader.Factory(client));